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jamenx
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Posts posted by jamenx
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Thanks for all the info. I’ve checked the individual subs and it is noticeable in all four corners in each sub.
I’ve also tried Blur X and it does indeed fix this completely in the final image.
I’m in a bit of dilemma now whether to send it back for a replacement, which presumably could have the same issue? Or just correct with Blur X…
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Forgot to add I also used 2 inch Optolong L-eXtreme Filter
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Hey, hoping someone can help me with some star trails (see attached stacked image). This is the second time out with a completely new rig, so I am still getting to grips with everything.
Redcat 51, AIS2600MC Pro, AM5 mount.
Images: 37 - 300 sec lights, 30 - darks, 30 - flats and 100 - bias.
I have star trails at each corner moving away from the centre. What's the most likely reason for this? I am still getting used the mount and setup so only did a very quick polar alignment and my guide cam was not fully focused if that makes any difference.
Thanks James
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8 hours ago, Fegato said:
sorry - should have added, if you weren't aware (not sure), Aurora panels are a particular make of flat panel by Gerd Neumann - see https://www.gerdneumann.net/english/astrofotografie-parts-astrophotography/aurora-flatfield-panels/uebersicht-aurora-flatfield-panels-overview.html
Ah ha that makes more sense. I was looking at what appear to be light ceiling panels! Thanks for your help, I have just ordered one so will see if it helps.
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Hey thanks for your reply! I've attached the files
Also just looking at Aurora Panels - is there any particular one you would recommend?
Light_M42_300.0s_Bin1_20240126-223226_0006.fit MasterFlat_Gain100.tif sub_calibrated.TIF
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Hey
Beginner here. I managed to try out my new rig for the first time last night: Redcat 51, AM5, ASI2600MC Pro and optolong L-extreme. Spent most the evening just trying to get everything working, but I did eventually get some images of M42. I had already taken my darks (30) and biases (100) which I think are ok, but at the end of the session I took my flats using a white laptop screen held up to scope - probably not ideal.
I used the Asiair plus auto setting to take 30 flats. They came out about 10 seconds long, then I tried again at a higher brightness which came out at 2.4 seconds long. When I stack the images I get strong red and green vignetting (see below) whichever flats I use.
When I just stack the lights I don't get this issue so I think it must be my calibration images. I have been able to remove this processing the images, but I'd like to try and sort it out before that. Any ideas would be much appreciated!
Thanks
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Thank guys. One thing that amazes me is the quality and detail of images that people seem to be taking these days on (relatively) cheap setups!
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Hello!
Nice to meet you all. Just returning after a 12 year break from astrophotography! Very much a beginner still.
My old rig was a skywatcher 150PDS, EQ 3-2 mount & Cannon 550D. Plus a makeshift guiding system using an old PC webcam. I was on a very tight budget back then in my late 20’s and remember spending many, many long nights trying to get it all working.
Now in my early 40’s and in a much better position financially, but with less free time, I’ve just pulled the trigger on a redcat 51, ZWO AM5 & asi2600mc pro, plus all the ZWO guiding & focusing accessories that will hopefully make life a little easier this time round.
FLO has a 15-20 working day estimate on some parts, so just reading up as much as I can in the meantime.
Very excited to see what’s changed in the past decade. Here are a few pictures from my old rig!
James
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Help with star trails in corners
in Imaging - Tips, Tricks and Techniques
Posted
I have contacted the supplier and sent the attached to subs. They said it could be a manufacturing defect, but also said it could be tilt and referred to the top right hand corner of each image where the stars have a more uniform look.
They are going to contact William Optics, but suggest I do try to adjust the tilt to see if that helps.